This apparently is my own special hell when it comes to M-B ownership.

I have posted this on a couple forums in the hopes I can tap as many brains as possible. I had a similar issue with my late SL some years ago. It's now the turn of my 1991 350SD to frustrate the crap out of me.

I'm in the brake bleeding Twilight Zone.

Brakes were working ok, but needed to replace front pads. Replaced and bled rears last year, no problems. Front pistons needed to be freed up, so took care of that. After bleeding, blew the front to rear hard line. Replaced with new OEM line I had on hand, and now I can't get any fluid to the rear- nothing.

I encountered virtually the same scenario on my '88 SL years ago. At that time, I replaced the ABS unit (which was suspect) and still no fluid. I was only able to resolve this by taking the car to the dealer, where they tied into their computers and "mapped" the system. Whatever that process was, it worked and I had brakes. I have read every damned opinion there is about this, and am just hoping there might be something definitive out there as to how to get the fluid flowing again in this previously functional hydraulic system. I'm really not an idiot, and have bled brakes on many other vehicles, never having encountered a problem.

Thanks!

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Chief

1991 350SD